I am a size 10-12 and have a Seasalt Planthunter coat in a size 10 that's too big for me, it's not flattering at all ! I would prefer a longer one so thinking about getting the Janelle. Is the sizing the same as the Planthunter ? I think an 8 would be better for that one actually but should I get a 10 or 12 for the Janelle? It's too expensive so buy 2 and return so I want to be sure.